30results about How to "With denitrification function" patented technology

The invention discloses an effluent disposing method through fluid bed and making method of biological affinity fill, which comprises the following steps: filling biological affinity fill in the fluid bed; making predisposed effluent into anaerobic pulse fluid bed and aerobic circulating fluid bed to do biochemical disposal; separating water from mud through two sediment pond or gas floating technique; sterilizing; discharging sludge into sludge condensing pond or refluxing sludge to anaerobic pond and aerobic pond. The biological affinity fill is composed of polyurethane, rare earth and ferric oxide.

The invention provides an aerobic microbial electrochemical biological turntable sewage treatment method. The method is to use the aerobic microbial film and the anaerobic electricity-producing microbial film to grow together on a three-dimensional carrier with oxygen reduction catalytic performance to form a composite biofilm. A biological turntable is made; wherein, the anaerobic electrogenic microbial film grows on the inner layer close to the carrier, while the aerobic microbial film grows on the outer layer, wrapping and protecting the anaerobic electrogenic microbial film. It utilizes the aerobic respiration of the aerobic microbial membrane, the electrocatalytic oxidation and electrocatalytic reduction of anaerobic electricity-producing microorganisms, and the electrocatalytic oxygen reduction of the carrier itself to remove various pollutants in water at the same time. It has the advantages of (a) low material and operating costs; (b) simple process and small footprint; (c) high decontamination efficiency, multi-functionality and (d) can be integrated with traditional aerobic biological treatment systems, etc. .

The invention discloses an aerobic denitrifying bacteria and application thereof. The preservation number of Pseudomonas JM22B6 of the present invention is: GDMCC No: 61212. According to comprehensive analysis of morphology, physiology and biochemistry, 16SrRNA sequence and genome sequence, the strain of the present invention is a new species of Pseudomonas. This strain is a new type of aerobic denitrifying bacteria, which can efficiently remove nitrate nitrogen, nitrite nitrogen and ammonium nitrogen in water, that is, after 12 hours of cultivation, the removal efficiency of nitrite nitrogen and ammonium nitrogen Both were 100%; the removal rate of nitrate nitrogen was 100% after culturing for 24 hours. In addition, the strain 22B6 has a good denitrification effect in the range of nitrite nitrogen concentration from 14 to 280 mg / L. Therefore, Pseudomonas JM22B6 has important application potential in the denitrification treatment of wastewater polluted by nitrogen such as nitrate nitrogen, nitrite nitrogen and ammonium nitrogen, especially wastewater polluted by various concentrations of nitrite nitrogen.

The invention provides a method for regenerating dedusting and denitrifying a multifunctional catalytic filter material. The method concretely comprises the following steps: (1) preparing a cleaning solution; (2) producing a regenerated catalyic filter membrane from polytetrafluoroethylene powder, catalyst powder, a pore forming agent, a coupling agent and a lubricant; (3) purging a poisoned or deactivated dusting and denitrifying multifunctional filter material, and washing the filter material with the prepared cleaning solution, and pretreating the filter material base cloth with a treatmentagent; and (4) performing hot press compounding on the prepared regenerated catalytic filter membrane and the pretreated filter base cloth by a hot press roller, and cooling the obtained material toobtain a regenerated dedusting and denitrifying multifunctional filter material. The method allows the regeneration of the dedusting and denitrifying multifunctional filter material to be fast completed by using an existing filter material preparation device only through matching with a simply used device, and makes the regenerated multifunctional filter material environmentally friendly and highly efficient (the denitrifying activity is more than 90%). The method has great significance to realize the industrialization and the promotion application of flue gas simultaneous dedusting and denitrifying filter bags.

The invention discloses a multi-cycle self-backflow small living sewage treatment system with a denitrification function. The system is composed of a water yield adjusting area, a biochemical treatment area and a settling area. A lifting pump is arranged in the water yield adjusting area to lift sewage to be treated to one end of the biochemical treatment area. An aerating apparatus and biochemical reaction filler are installed in the biochemical treatment area. A backflow device is arranged on the pond wall between the other end of the biochemical treatment area and the water yield adjusting area, and after the backflow device is started, sewage subjected to a biochemical reaction can flow back into the water yield adjusting area. An effluent weir is arranged on the pond wall between the other end of the biochemical treatment area and the settling area. A sufficient circular reaction of sewage can be achieved due to the design of the height difference of the bottom of the crest of the effluent weir and the bottom of the crest of a backflow weir, the pollution load impact is the smallest, and the sewage treatment efficiency is highest. The system is applicable to small-yield sewage treatment, and particularly suitable for non-uniform inflowing sewage treatment conditions with the denitrification requirement. Impact of the instantaneous water inflowing pollution load on the system is small, the ammonium-nitrogen removal rate is high, and the sewage treatment efficiency is high.

The invention relates to the technical field of sewage treatment and provides a microbial electrochemical biological turntable for sewage treatment. It includes a three-dimensional carrier, a rotating shaft and a power device; the three-dimensional carrier is arranged on the rotating shaft, and the rotating shaft is connected to the power device; it is characterized in that: anaerobic electricity-generating microbial film and aerobic microbial film are attached to the three-dimensional carrier, wherein the anaerobic electricity-generating The microbial film grows on the inner layer close to the carrier, while the aerobic microbial film grows on the outer layer to wrap and protect the anaerobic electricity-producing microbial film; the three-dimensional carrier is partly immersed in sewage and partly exposed to the air. The electrons inside the biological turntable can be self-transferred, and can synergistically remove electron donors and electron acceptors in water. The electron donors include organic matter and ammonium nitrogen, and the electron acceptors include nitrate nitrogen, nitrite nitrogen, sulfate and heavy metal ions.